1000 KVA Pad Mounted Transformers-34.5 / 0.48 KV|USA 2025

01 General

1.1 Project Description

Hnub ci PV cov nroj tsuag tsis tshua khiav zoo li koj cov khoom lag luam raug. Hnub ci hloov ib teev los ntawm ib teev, huab cua ntws tawm hauv thiab tawm, thiab cov inverters feem ntau khiav ntawm ib nrab ntawm cov load - uas txhais tau hais tias 1000 kva ncoo mounted transformer pom txhua yam sib tshuam, tsis paub meej, thiab qee zaum nrawm nrawm.

Rau qhov project no, peb yuav tsum tau nce qib 480Y / 277 V los ntawm sab inverter mus rau 34.5 kV (34500GrdY / 19920 V) los pub rau hauv daim phiaj. Yog li ntawd, qhov no1000 kVA peb-theem ncoo-mounted transformeryog hom ntawm lub plawv ntawm lub system - tsis muaj nws, tsis muaj dab tsi tiag tiag txav.

Txij li thaum nws nyob nraum zoov, tus qauv tsim yuav tsum tau ua kom siab dua - dua - cov qauv ib txwm muaj, thiab tib lub sijhawm, peb tsis tuaj yeem cuam tshuam rau cov hom phiaj: kev sib txuas ntawm kab sib chaws ruaj khov, kev tswj hluav taws xob hloov tau, thiab kev ua haujlwm ruaj khov rau 20+ xyoo. Qhov ntawd yog qhov uas Scotech tuaj txog. Peb tsim nws los daws ntau yam kev sib tw ib zaug: ua kom cov neeg ua haujlwm muaj kev nyab xeeb nrog cov neeg tuag- kev tsim kho pem hauv ntej, ua rau nws tawv tawv tiv thaiv huab cua nrog corrosion- cov coatings resistant, siv FR3 natural ester roj rau ib puag ncig thiab hluav taws kev nyab xeeb, thiab nteg tawm txhua yam yog li kev soj ntsuam thiab kev saib xyuas tsis mob taub hau.

1.2 Technical Specification

1000kVA peb theem ncoo mounted transformer specification thiab cov ntaub ntawv ntawv

1.3 Cov duab kos

1000KVA peb theem ncoo mounted transformer kos duab thiab nameplate

02 Transformer Tsim thiab Kev Ua Haujlwm

2.1 4-Txoj haujlwm Loadbreak Hloov

Qhov no transformer siv 4- txoj hauj lwm load- tawg hloov, tsim los rau dual-source PV feeder daim ntaub ntawv.
Plaub txoj haujlwm muab kev hloov pauv hloov pauv thiab kev nyab xeeb loadbreak ua haujlwm:
SOURCE A & B - THOV NTAU
SAIB A - THOV NTAU
SOURCE B - Nias rau
SOURCE A & B - THOV KOM TAU
Cov haujlwm no ua rau muaj kev nyab xeeb ntawm kev thauj khoom- tawg hloov pauv, dual- qhov chaw xaiv, thiab coj mus rhaub- kev rho tawm hauv Circuit Court - zoo tagnrho rau PV kauj ruam -up transformers uas yuav tsum muaj kev txhim khu kev qha feeder.

 

2.2 Rwb thaiv tsev & cua txias System

Rau qhov no 1000 kva ncoo mounted transformer, peb xaiv FR3 ntuj ester roj vim nws muab qhov zoo meej rau kev siv PV. Nws lub teeb nyem siab tau ua kom muaj kev nyab xeeb hluav taws kub - qhov tseem ceeb rau kev teeb tsa sab nraum zoov. FR3 kuj yog biodegradable, txhawb kev ua raws li ib puag ncig. Qhov tseem ceeb tshaj, nws muaj kev ua tau zoo thermal ua tau zoo, tso cai rau cov txheej txheem rwb thaiv tsev los tswj lub voj voog thiab qhov kub thiab txias -tsav load variations ntawm hnub ci PV chaw.
Lub tshuab cua txias yog KNAN, lub ntuj tsim -ester sib npaug ntawm ONAN. Rau cov ntawv thov PV qhov chaw thauj khoom tuaj yeem sib txawv thoob plaws ib hnub, KNAN muab cov cua txias ruaj khov thiab txhim khu kev qha, ua kom muaj kev ua tau zoo raws li qhov hloov pauv hnub ci.

 

2.3. Tank & Safety Design

Vim qhov no yog ibncoo -mounted transformerzaum sab nraud, peb yuav tsum xav txog kev nyab xeeb thiab kav ntev ntawm txhua lub kaum ntse ntse. Peb tsim nws nrog tuag- kev tsim kho pem hauv ntej - yog li txhua tus neeg ua haujlwm nyob ze nws nyob nyab xeeb - thiab lub voj voog - pub kev teeb tsa kom cov kab sib txuas hloov tau yooj yim.

Lub tank thiab txee tau txais kev xeb- tiv taus, UV- cov ntaub ntawv pov thawj, vim hais tias ncaj ncees, tsis muaj leej twg xav tau lub tshuab hloov xeb tom qab ib xyoos ntawm hnub thiab los nag. Peb kuj tau tsim nyob rau hauv kev ntsuas los tiv thaiv tub sab nyiag lossis yuam kev tampering. Thiab ntawm chav kawm, cov roj FR3 tsis yog pab nrog kev nyab xeeb hluav taws xwb - nws kuj ua rau muaj kev cuam tshuam ib puag ncig qis.

 

 

03 Kev Txiav Txim thiab Kev Tiv Thaiv Cheeb Tsam

3.1. Bushings & Terminations

HV sab (34.5kV): • 200A Loadbreak / Deadbreak bushings • xob laim ntes • Txhim kho av thiab tiv thaiv kom raug
	LV sab (480V): • 12-qhov spade terminals • H0/X0 cov ntsiab lus nruab nrab coj tawm nyias Tag nrho cov khoom ua tau raws li ANSI cov qauv rau kev siv tshuab, thermal, thiab hluav taws xob ua haujlwm.

3.2. Accessories & Kev Tiv Thaiv

Txheem ANSI ncoo -mount configuration:
• Roj kub, roj theem, winding kub ntsuas + ntws valve
• HV fuses, load switches, 4-txoj hauj lwm selector keyboards
• Sab -mounted ntsuas vaj huam sib luag rau kev saib xyuas thiab kev tiv thaiv
• Sab nraud grounding thiab shielding
• Kev tiv thaiv xob laim (nyob qhov chaw ntes)

04 Ntim thiab thauj

 

 

05 Site thiab Summary

Qhov no 1000 kVA PV kauj ruam- nce transformer ua kom cov kab hluav taws xob ruaj khov, yog li inverters khiav zoo. Sau nrog FR3 ntuj ester roj, nws yog ib puag ncig tus phooj ywg thiab txo qis kev pheej hmoo hluav taws.

Tus qauv tsim ua haujlwm tsis tu ncua ntawm PV loads, uas pab txuas ntxiv lub neej ntev, thiab OLTC tswj kev hloov pauv sai, tau txais txiaj ntsig zoo tshaj plaws ntawm koj lub hnub ci zog.

Ua lub ncoo-mounted, nws yooj yim rau nruab, siv qhov chaw me me, thiab yooj yim los tswj. Ua raws li North American daim phiaj qauv, nws ua haujlwm zoo rau ob qho tib si faib thiab nruab nrab PV nroj tsuag.